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Finding the Fourth Proportional to 69,957.51, 104,935.28 and 39,907.62

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Solution

The fourth proportional to 69,957.51, 104,935.28 and 39,907.62 is: 59,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,957.51 : 104,935.28 = 39,907.62 : x
  2. Step 2: Convert to fraction form
    69,957.51/104,935.28 = 39,907.62/x
  3. Step 3: Cross multiply
    69,957.51x = 104,935.28 × 39,907.62
  4. Step 4: Simplify right side
    69,957.51x = 4,187,716,754.16
  5. Step 5: Solve for x
    x = 4,187,716,754.16/69,957.51
  6. Step 6: Final answer
    x = 59,860.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.